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<a href="mpf__codec_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright 2008-2015 Arsen Chaloyan</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * you may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *     http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * limitations under the License.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#ifndef MPF_CODEC_H</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define MPF_CODEC_H</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor"></span><span class="comment"></span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment">/**</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * @file mpf_codec.h</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * @brief MPF Codec</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> */</span> </div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="mpf__codec__descriptor_8h.html">mpf_codec_descriptor.h</a>&quot;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<a class="code" href="apt_8h.html#ad3d792bfc75893affad257781ea46e55">APT_BEGIN_EXTERN_C</a></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment">/** Codec virtual table declaration */</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="mpf__codec_8h.html#aca8956bd13bd10c0d338f4a815e7c4e8">   30</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structmpf__codec__vtable__t.html">mpf_codec_vtable_t</a> <a class="code" href="structmpf__codec__vtable__t.html">mpf_codec_vtable_t</a>;<span class="comment"></span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">/** Codec declaration*/</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="mpf__codec_8h.html#a5def5103d6f5eefb41378322908353e5">   32</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> <a class="code" href="structmpf__codec__t.html">mpf_codec_t</a>;</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment">/** Codec */</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="structmpf__codec__t.html">   35</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> {<span class="comment"></span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment">    /** Codec manipulators (encode, decode, dissect) */</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">   37</a></span>&#160;    <span class="keyword">const</span> <a class="code" href="structmpf__codec__vtable__t.html">mpf_codec_vtable_t</a>     *<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>;<span class="comment"></span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">    /** Codec attributes (capabilities) */</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="structmpf__codec__t.html#a4f9b4a30a81e66e0cf1522a089e18b6c">   39</a></span>&#160;    <span class="keyword">const</span> <a class="code" href="structmpf__codec__attribs__t.html">mpf_codec_attribs_t</a>    *<a class="code" href="structmpf__codec__t.html#a4f9b4a30a81e66e0cf1522a089e18b6c">attribs</a>;<span class="comment"></span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment">    /** Optional static codec descriptor (pt &lt; 96) */</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="structmpf__codec__t.html#a827a21c87dfcf868c481742d97f5f447">   41</a></span>&#160;    <span class="keyword">const</span> <a class="code" href="structmpf__codec__descriptor__t.html">mpf_codec_descriptor_t</a> *<a class="code" href="structmpf__codec__t.html#a827a21c87dfcf868c481742d97f5f447">static_descriptor</a>;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;};</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">/** Table of codec virtual methods */</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="structmpf__codec__vtable__t.html">   45</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmpf__codec__vtable__t.html">mpf_codec_vtable_t</a> {<span class="comment"></span></div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment">    /** Virtual open method */</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="structmpf__codec__vtable__t.html#a6b23c6644c14151fe80fccc77db4f4c5">   47</a></span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> (*<a class="code" href="structmpf__codec__vtable__t.html#a6b23c6644c14151fe80fccc77db4f4c5">open</a>)(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec);<span class="comment"></span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">    /** Virtual close method */</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="structmpf__codec__vtable__t.html#afabc1e5edbe8d4767c84a41dd3d4986e">   49</a></span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> (*<a class="code" href="structmpf__codec__vtable__t.html#afabc1e5edbe8d4767c84a41dd3d4986e">close</a>)(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec);</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="comment">    /** Virtual encode method */</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structmpf__codec__vtable__t.html#aabdb57cbe43fd3532df7ca04d9001596">   52</a></span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> (*<a class="code" href="structmpf__codec__vtable__t.html#aabdb57cbe43fd3532df7ca04d9001596">encode</a>)(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec, <span class="keyword">const</span> <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_in, <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_out);<span class="comment"></span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment">    /** Virtual decode method */</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="structmpf__codec__vtable__t.html#ac5432b0d454f55e65ee85e5629cb0d82">   54</a></span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> (*<a class="code" href="structmpf__codec__vtable__t.html#ac5432b0d454f55e65ee85e5629cb0d82">decode</a>)(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec, <span class="keyword">const</span> <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_in, <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_out);</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">    /** Virtual dissect method */</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="structmpf__codec__vtable__t.html#a25873488c6aacb2897f31a773f4477c9">   57</a></span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> (*<a class="code" href="structmpf__codec__vtable__t.html#a25873488c6aacb2897f31a773f4477c9">dissect</a>)(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec, <span class="keywordtype">void</span> **buffer, apr_size_t *size, <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame);</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="comment">    /** Virtual initialize method */</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="structmpf__codec__vtable__t.html#a8adc61e24ac64ad935fd8f5ec14c65bc">   60</a></span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> (*<a class="code" href="structmpf__codec__vtable__t.html#a8adc61e24ac64ad935fd8f5ec14c65bc">initialize</a>)(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec, <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_out);</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;};</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="comment">/**</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment"> * Create codec.</span></div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="comment"> * @param vtable the table of virtual mthods</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment"> * @param attribs the codec attributes</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="comment"> * @param descriptor the codec descriptor</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="comment"> * @param pool the pool to allocate memory from</span></div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="keyword">static</span> APR_INLINE <a class="code" href="structmpf__codec__t.html">mpf_codec_t</a>* mpf_codec_create(</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;                                    <span class="keyword">const</span> <a class="code" href="structmpf__codec__vtable__t.html">mpf_codec_vtable_t</a> *vtable, </div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;                                    <span class="keyword">const</span> <a class="code" href="structmpf__codec__attribs__t.html">mpf_codec_attribs_t</a> *attribs, </div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;                                    <span class="keyword">const</span> <a class="code" href="structmpf__codec__descriptor__t.html">mpf_codec_descriptor_t</a> *descriptor, </div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;                                    apr_pool_t *pool)</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;{</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec = (<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a>*)apr_palloc(pool,<span class="keyword">sizeof</span>(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a>));</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a> = vtable;</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    codec-&gt;<a class="code" href="structmpf__codec__t.html#a4f9b4a30a81e66e0cf1522a089e18b6c">attribs</a> = attribs;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    codec-&gt;<a class="code" href="structmpf__codec__t.html#a827a21c87dfcf868c481742d97f5f447">static_descriptor</a> = descriptor;</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <span class="keywordflow">return</span> codec;</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;}</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment">/**</span></div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="comment"> * Clone codec.</span></div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="comment"> * @param src_codec the source (original) codec to clone</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="comment"> * @param pool the pool to allocate memory from</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="keyword">static</span> APR_INLINE <a class="code" href="structmpf__codec__t.html">mpf_codec_t</a>* mpf_codec_clone(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *src_codec, apr_pool_t *pool)</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;{</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    <a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec = (<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a>*)apr_palloc(pool,<span class="keyword">sizeof</span>(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a>));</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a> = src_codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    codec-&gt;<a class="code" href="structmpf__codec__t.html#a4f9b4a30a81e66e0cf1522a089e18b6c">attribs</a> = src_codec-&gt;<a class="code" href="structmpf__codec__t.html#a4f9b4a30a81e66e0cf1522a089e18b6c">attribs</a>;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    codec-&gt;<a class="code" href="structmpf__codec__t.html#a827a21c87dfcf868c481742d97f5f447">static_descriptor</a> = src_codec-&gt;<a class="code" href="structmpf__codec__t.html#a827a21c87dfcf868c481742d97f5f447">static_descriptor</a>;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <span class="keywordflow">return</span> codec;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;}</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="comment">/** Open codec */</span></div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="keyword">static</span> APR_INLINE <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> mpf_codec_open(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec)</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;{</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> rv = TRUE;</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    <span class="keywordflow">if</span>(codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#a6b23c6644c14151fe80fccc77db4f4c5">open</a>) {</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        rv = codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#a6b23c6644c14151fe80fccc77db4f4c5">open</a>(codec);</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    }</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    <span class="keywordflow">return</span> rv;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;}</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="comment">/** Close codec */</span></div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="keyword">static</span> APR_INLINE <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> mpf_codec_close(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec)</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;{</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> rv = TRUE;</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keywordflow">if</span>(codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#afabc1e5edbe8d4767c84a41dd3d4986e">close</a>) {</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        rv = codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#afabc1e5edbe8d4767c84a41dd3d4986e">close</a>(codec);</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    }</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    <span class="keywordflow">return</span> rv;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;}</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="comment">/** Encode codec frame */</span></div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="keyword">static</span> APR_INLINE <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> mpf_codec_encode(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec, <span class="keyword">const</span> <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_in, <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_out)</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;{</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> rv = TRUE;</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="keywordflow">if</span>(codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#aabdb57cbe43fd3532df7ca04d9001596">encode</a>) {</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        rv = codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#aabdb57cbe43fd3532df7ca04d9001596">encode</a>(codec,frame_in,frame_out);</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    }</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <span class="keywordflow">return</span> rv;</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;}</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="comment">/** Decode codec frame */</span></div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;<span class="keyword">static</span> APR_INLINE <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> mpf_codec_decode(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec, <span class="keyword">const</span> <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_in, <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_out)</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;{</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> rv = TRUE;</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="keywordflow">if</span>(codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#ac5432b0d454f55e65ee85e5629cb0d82">decode</a>) {</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        rv = codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#ac5432b0d454f55e65ee85e5629cb0d82">decode</a>(codec,frame_in,frame_out);</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    }</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keywordflow">return</span> rv;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;}</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="comment">/** Dissect codec frame (navigate through codec frames in a buffer, which may contain multiple frames) */</span></div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="keyword">static</span> APR_INLINE <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> mpf_codec_dissect(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec, <span class="keywordtype">void</span> **buffer, apr_size_t *size, <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame)</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;{</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> rv = TRUE;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    <span class="keywordflow">if</span>(codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#a25873488c6aacb2897f31a773f4477c9">dissect</a>) {</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;        <span class="comment">/* custom dissector for codecs like G.729, G.723 */</span></div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;        rv = codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#a25873488c6aacb2897f31a773f4477c9">dissect</a>(codec,buffer,size,frame);</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    }</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;        <span class="comment">/* default dissector */</span></div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        <span class="keywordflow">if</span>(*size &gt;= frame-&gt;<a class="code" href="structmpf__codec__frame__t.html#af50790bc639f24761f716ae79e1b7891">size</a> &amp;&amp; frame-&gt;<a class="code" href="structmpf__codec__frame__t.html#af50790bc639f24761f716ae79e1b7891">size</a>) {</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;            memcpy(frame-&gt;<a class="code" href="structmpf__codec__frame__t.html#a712fca2d8b94d55559f199e524b08773">buffer</a>,*buffer,frame-&gt;<a class="code" href="structmpf__codec__frame__t.html#af50790bc639f24761f716ae79e1b7891">size</a>);</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;            </div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;            *buffer = (apr_byte_t*)*buffer + frame-&gt;<a class="code" href="structmpf__codec__frame__t.html#af50790bc639f24761f716ae79e1b7891">size</a>;</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;            *size = *size - frame-&gt;<a class="code" href="structmpf__codec__frame__t.html#af50790bc639f24761f716ae79e1b7891">size</a>;</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;        }</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;            rv = FALSE;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;        }</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    }</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    <span class="keywordflow">return</span> rv;</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;}</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="comment">/** Initialize (fill) codec frame with silence */</span></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="keyword">static</span> APR_INLINE <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> mpf_codec_initialize(<a class="code" href="structmpf__codec__t.html">mpf_codec_t</a> *codec, <a class="code" href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a> *frame_out)</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;{</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <a class="code" href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a> rv = TRUE;</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    <span class="keywordflow">if</span>(codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#a8adc61e24ac64ad935fd8f5ec14c65bc">initialize</a>) {</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;        rv = codec-&gt;<a class="code" href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">vtable</a>-&gt;<a class="code" href="structmpf__codec__vtable__t.html#a8adc61e24ac64ad935fd8f5ec14c65bc">initialize</a>(codec,frame_out);</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    }</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;        memset(frame_out-&gt;<a class="code" href="structmpf__codec__frame__t.html#a712fca2d8b94d55559f199e524b08773">buffer</a>,0,frame_out-&gt;<a class="code" href="structmpf__codec__frame__t.html#af50790bc639f24761f716ae79e1b7891">size</a>);</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    }</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    <span class="keywordflow">return</span> rv;</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;}</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<a class="code" href="apt_8h.html#a432919823b38eb7e2b6fa2b544fb1644">APT_END_EXTERN_C</a></div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* MPF_CODEC_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="structmpf__codec__attribs__t_html"><div class="ttname"><a href="structmpf__codec__attribs__t.html">mpf_codec_attribs_t</a></div><div class="ttdef"><b>Definition:</b> mpf_codec_descriptor.h:89</div></div>
<div class="ttc" id="apt_8h_html_a432919823b38eb7e2b6fa2b544fb1644"><div class="ttname"><a href="apt_8h.html#a432919823b38eb7e2b6fa2b544fb1644">APT_END_EXTERN_C</a></div><div class="ttdeci">#define APT_END_EXTERN_C</div><div class="ttdef"><b>Definition:</b> apt.h:38</div></div>
<div class="ttc" id="apt_8h_html_ac7b6d8df47829d778eb598e1cc52cc2a"><div class="ttname"><a href="apt_8h.html#ac7b6d8df47829d778eb598e1cc52cc2a">apt_bool_t</a></div><div class="ttdeci">int apt_bool_t</div><div class="ttdef"><b>Definition:</b> apt.h:57</div></div>
<div class="ttc" id="structmpf__codec__t_html"><div class="ttname"><a href="structmpf__codec__t.html">mpf_codec_t</a></div><div class="ttdef"><b>Definition:</b> mpf_codec.h:35</div></div>
<div class="ttc" id="structmpf__codec__vtable__t_html"><div class="ttname"><a href="structmpf__codec__vtable__t.html">mpf_codec_vtable_t</a></div><div class="ttdef"><b>Definition:</b> mpf_codec.h:45</div></div>
<div class="ttc" id="structmpf__codec__vtable__t_html_ac5432b0d454f55e65ee85e5629cb0d82"><div class="ttname"><a href="structmpf__codec__vtable__t.html#ac5432b0d454f55e65ee85e5629cb0d82">mpf_codec_vtable_t::decode</a></div><div class="ttdeci">apt_bool_t(* decode)(mpf_codec_t *codec, const mpf_codec_frame_t *frame_in, mpf_codec_frame_t *frame_out)</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:54</div></div>
<div class="ttc" id="apt_8h_html_ad3d792bfc75893affad257781ea46e55"><div class="ttname"><a href="apt_8h.html#ad3d792bfc75893affad257781ea46e55">APT_BEGIN_EXTERN_C</a></div><div class="ttdeci">#define APT_BEGIN_EXTERN_C</div><div class="ttdef"><b>Definition:</b> apt.h:36</div></div>
<div class="ttc" id="structmpf__codec__frame__t_html"><div class="ttname"><a href="structmpf__codec__frame__t.html">mpf_codec_frame_t</a></div><div class="ttdef"><b>Definition:</b> mpf_codec_descriptor.h:107</div></div>
<div class="ttc" id="structmpf__codec__frame__t_html_af50790bc639f24761f716ae79e1b7891"><div class="ttname"><a href="structmpf__codec__frame__t.html#af50790bc639f24761f716ae79e1b7891">mpf_codec_frame_t::size</a></div><div class="ttdeci">apr_size_t size</div><div class="ttdef"><b>Definition:</b> mpf_codec_descriptor.h:111</div></div>
<div class="ttc" id="structmpf__codec__vtable__t_html_a6b23c6644c14151fe80fccc77db4f4c5"><div class="ttname"><a href="structmpf__codec__vtable__t.html#a6b23c6644c14151fe80fccc77db4f4c5">mpf_codec_vtable_t::open</a></div><div class="ttdeci">apt_bool_t(* open)(mpf_codec_t *codec)</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:47</div></div>
<div class="ttc" id="structmpf__codec__vtable__t_html_afabc1e5edbe8d4767c84a41dd3d4986e"><div class="ttname"><a href="structmpf__codec__vtable__t.html#afabc1e5edbe8d4767c84a41dd3d4986e">mpf_codec_vtable_t::close</a></div><div class="ttdeci">apt_bool_t(* close)(mpf_codec_t *codec)</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:49</div></div>
<div class="ttc" id="structmpf__codec__frame__t_html_a712fca2d8b94d55559f199e524b08773"><div class="ttname"><a href="structmpf__codec__frame__t.html#a712fca2d8b94d55559f199e524b08773">mpf_codec_frame_t::buffer</a></div><div class="ttdeci">void * buffer</div><div class="ttdef"><b>Definition:</b> mpf_codec_descriptor.h:109</div></div>
<div class="ttc" id="structmpf__codec__vtable__t_html_a25873488c6aacb2897f31a773f4477c9"><div class="ttname"><a href="structmpf__codec__vtable__t.html#a25873488c6aacb2897f31a773f4477c9">mpf_codec_vtable_t::dissect</a></div><div class="ttdeci">apt_bool_t(* dissect)(mpf_codec_t *codec, void **buffer, apr_size_t *size, mpf_codec_frame_t *frame)</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:57</div></div>
<div class="ttc" id="mpf__codec__descriptor_8h_html"><div class="ttname"><a href="mpf__codec__descriptor_8h.html">mpf_codec_descriptor.h</a></div><div class="ttdoc">MPF Codec Descriptor. </div></div>
<div class="ttc" id="structmpf__codec__t_html_a827a21c87dfcf868c481742d97f5f447"><div class="ttname"><a href="structmpf__codec__t.html#a827a21c87dfcf868c481742d97f5f447">mpf_codec_t::static_descriptor</a></div><div class="ttdeci">const mpf_codec_descriptor_t * static_descriptor</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:41</div></div>
<div class="ttc" id="structmpf__codec__vtable__t_html_a8adc61e24ac64ad935fd8f5ec14c65bc"><div class="ttname"><a href="structmpf__codec__vtable__t.html#a8adc61e24ac64ad935fd8f5ec14c65bc">mpf_codec_vtable_t::initialize</a></div><div class="ttdeci">apt_bool_t(* initialize)(mpf_codec_t *codec, mpf_codec_frame_t *frame_out)</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:60</div></div>
<div class="ttc" id="structmpf__codec__t_html_a4f9b4a30a81e66e0cf1522a089e18b6c"><div class="ttname"><a href="structmpf__codec__t.html#a4f9b4a30a81e66e0cf1522a089e18b6c">mpf_codec_t::attribs</a></div><div class="ttdeci">const mpf_codec_attribs_t * attribs</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:39</div></div>
<div class="ttc" id="structmpf__codec__vtable__t_html_aabdb57cbe43fd3532df7ca04d9001596"><div class="ttname"><a href="structmpf__codec__vtable__t.html#aabdb57cbe43fd3532df7ca04d9001596">mpf_codec_vtable_t::encode</a></div><div class="ttdeci">apt_bool_t(* encode)(mpf_codec_t *codec, const mpf_codec_frame_t *frame_in, mpf_codec_frame_t *frame_out)</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:52</div></div>
<div class="ttc" id="structmpf__codec__t_html_ac7e3e4ef18c30c8a7a5cbfc58ad7bb24"><div class="ttname"><a href="structmpf__codec__t.html#ac7e3e4ef18c30c8a7a5cbfc58ad7bb24">mpf_codec_t::vtable</a></div><div class="ttdeci">const mpf_codec_vtable_t * vtable</div><div class="ttdef"><b>Definition:</b> mpf_codec.h:37</div></div>
<div class="ttc" id="structmpf__codec__descriptor__t_html"><div class="ttname"><a href="structmpf__codec__descriptor__t.html">mpf_codec_descriptor_t</a></div><div class="ttdef"><b>Definition:</b> mpf_codec_descriptor.h:63</div></div>
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